We should think of ways to stop the waste from the factory our living environment.
A. being polluted
B. polluting
C. from being polluted
D. Polluted
网友回答
A. being polluted
(答案→)B. polluting
C. from being polluted
D. Polluted
解析：根据“废物”与“环境”的关系，“废物”污染“环境”，为主动发出的动作，故答案选B。